Broadcast mode - error checking

Quick query on broadcast mode that I can’t figure out from the manual -
When using broadcast mode ( transparent), what error checking is done by the receiver?
Would I be right in assuming that there is a packet CRC, and that the module will never send out a bad packet from its serial port, i.e. as signal degrades, I will see either a good packet or no packet, never an packet with bad data?

What length CRC is used?

Use the following link to frame a packet,
The receiving capability is built into the XBee module itself.
If the frame what you are sending is according to the defined type(as in the product manual), you will not receive any error.